342 



THE INDIA RUBBER WORLD 



[Ai'RiL 1, 1916. 



lowered by depressing the vertical shaft /, controlled by the 

 counter-weight /. until the blades are 3 inches below the inside 

 cap-band that is attached to the head -block. The foot is then 

 placed on the treadle, whidi lo«^T^ the bnllow plunger and 

 forces the lower pleating 

 blades upward. These 

 accurately fold the rub- 

 ber sheet between the 

 upper blades, and firmly 

 attach each pleat to the 

 inside head-band. The 

 treadle is then released, 

 allowing the lower blades 

 to fall back and resume 

 their original posture, as 

 illustrated in Figure 4. 



The cemented part of the cap has now been folded on and over 

 each one of the upper blades, and cemented fast to the inside 



Fig. S. — Drying Tumbler. 



head-band. The ring to which the blades are attached is moved 

 to the right, w-hich simultaneously folds the pleats one upon the 

 other, after which the blades are released by raising the upper 

 blade-head. The outside head-band and trimming is then at- 

 tached, and the cap and head-block are removed from the ma- 

 chine. An operator with ordinary intelligence and a little expe- 

 rience can turn out one complete cap a minute on this machine. 



The final cure is then given, which is tumbling for 60 minutes 

 at 110 degrees F. in monochloride of sulphur vapor in the vul- 

 canizing chamber already described. The washing process which 

 follows is performed in an ordinary rotary washing machine com- 

 mon in every steam laundry. Cold, clear water, with a small 

 amount of 26 degrees liquid ammonia, and a pint of neutral chip 

 soap serves to remove the corn-starch from the caps and restore 

 the original brilliant colors. The final drying is done in a rotary 

 octagon tumbler covered with open mesh wire cloth, as shown 

 in Figure 5. About one hour's tumbling in this machine is 

 sufficient to thorouglily dry the finished caps. 



Foreign Import Duties on Rubber Tires. 



THE following table, corrected to February 7, shows the 

 foreign import duties on rubber tires of all descriptions 

 imported into various countries from the United States. 

 The column marked "Weight" shows whether duties are levied 

 on net or gross weight, or include simply the inner packings. 

 The next two columns give the rate of the duty per 100 pounds 

 in United States currency and the rate per cent ad valorem. 



In the last column are given many valuable notes regarding im- 

 ports into particular countries. 



Certain charges such as warehousing, customs handling, local 

 taxes, revenue stamps, etc.. are not included. The rates of duty 

 shown, including the surtaxes as noted, should therefore be 

 regarded as the minima. .'N.s changes in duties are liable to occur 

 at any time, frequent verification of these figures is advised. 



I Imports of articles invoiced at prices less than the ma 

 1 country from which exported, are liable to a "dunijiir 

 I cent if such articles are also made in Canada. 



irfage tax of 10.5 cents per IOC pounds 

 is inclu.-.ed. 



irtax of 10 per cent is included. The value of the Mexican peso, used 



getting the converted value, was $0,156. 

 rrtax of 10 per cent is included. 



Trinidad and Tobago.... 

 Turks and Caico? Islands 



Virgin Islands 



Cuba 



St. Croix 



St. Thomas ard St. .Tchn 



Dominican Republic 



Dutch 



Haiti 



South America: 

 Argentina— Tires and 



Cost of packing is excluded. 

 A surtax of 10 per cent is 

 Cost of packing is excluded. 





the 



'. .\ surtax of 2 per 



f one-tenth of I per 



on into U. S. currency 



